Hoisting-bucket



G. W, RAWSON` HOISTING BUCKET.

(No Model.)

Patented Dc. 11, 1888.

auf es UNITED STATES APATENT @ritieni GEORGE RA'WSON, OF CAMBRDGE, IllASSACHUSE'VFS.

HOISTING-BUKET.

SPECIFICATION forming part of Letters Patent No. 394,297, dated December 11, 1888.

Application tiled .Tune 20, 1888.

To (1U [0710110 il"v muy flo/Learn:

Be it known thuil, (lEoRoE RA'wsON, u citizen ol' tllo United Istilles, residing at nmbl'idgtg ill the county ot' .lliddlesex I(lud Stute ot' hlssnchusetts, halve invented certain now und usel'ul improvements in lloisting- Buckets; und I do dechire the tollou'ingrw he n t'ull, clear, und cxuct deswipl ion o' the illvolition, sut'h :is will onnlltc others skilled ill the nrt to which itv lippen-latins to make and uso the sume, reference heilig.;- hud to the uc.` rolnpnnving drlnvincs.` :1nd to the letters und figures ot' reference nnlrlt Ad thereon, which form :l purtl ot' this spreidt-lilou.

l `igure l is :l lollg'itudin: l und vertical section. Fig'. L n vertical und rtlusversc section, Fig'. Il n side elevation. `vln=`K Fig'. l zin end ele vatioll, ot' n bucket p1'ovir`I with my improvement, with tlnjaws opoiu or ill the position ill which they are to he wil-:lll lowered into collt-flct with the material or sullstzluce with which said bucket is to be lillcd. Fig. is al side elevation ot the said bucket with its jnws closed.

The nnture ot' m v invention is detined ill the cluinls hereinafter presented.

ln the drnjwing's, A denotes the bucket, it lnlvinf.: two jaws, ll ll, euch provided with elves u u, which receive and turn on a. pivotal slnlt't, (j. arranged with said eyes, as shown, and also answer :is weights to facilitate the opening* ot' the bucket.

',lheshult (i is provided :u lts middle, be-

tween its ends, with n biot-k, l), having' piv otwll wit hinit sheaves il, ais represented,nud :arranged on. nach side ot' the block l), and bctwccn il :nld the eyes (l. (l, are sleeves E E, which servil the purpose ot' collars to keep thel block l) tfronl undue, endwise motion on szlid shult.

.livotcd to ouch side of euch nl the` iu-ws l il, A(lud near to the upper corners thereof, and :ilse to cnrs lffj" ot' the head-block ll, are rods there being; t'our ot' snid rods ill number, as show n. "l`hc head-block l\` has pivoted within il. showt-.s fr, und on each of two sides is provided wit-h :nl eye, (l, said c ves d being urrtnurod in n horizontal planeatriglltangles to that otf the ears ff. A rope, ll, secured :lt one end in one oi' the eyes (l, passes down under the sheaves l) and over the sheaves c succeslsively, and then is carried up through the Serial No. 277,620. (No model.)

other eye d of the head-block, und is secured to a drumsupported above itin the usual manner. eye, e, fastened to the head-block, and is ourried upward and fixed to :l-notller drum alrrnnged on the saine slnlft with ,the iirstmentolled drum, said drums hlt-ving arranged between them, und keyed to the shaft' ou which they ure supporti-d und revolve, e gear-wheel provided ill euch side with al. collie-al chamber to receive n corrcspoudingly -slnlped cone formed on the adjacent; end of encll drum. `tlatid drums are moved into or out of eonneetion with the said gear by means ot' all independent. lever couneet-ed to each. The gea-rwheell ret'erred to receives its motion from al pinion lived on e. driving-shaft ill the usual manner, i

The bucket hercinbeforc described is5intended purlicularly for use in unloading vessols lndoued with coal, and is to be lowered with the juws in the position shown ill Fig. l into the hold of the vessel und dropped into contact with the coul. The drum to which the line ll is secured is nextA to be set in motion by elutt'fhiug it to the gear hereiubefore referred to. Suid line will thcn'lle wound ou the drum. 'lhe block l) will now upprouch the block F, and the jaws will he forced into the coal with :l downward l'ort-e that will constnlltly increase ns thov close towurd euch othelgnud the bucket will be tillcd therewith. As soon :ls tinl jaws close zlnninst euch other the drlllll ol the'lincl is to be clutched to the said clutching-geur, und lll-tall lilies will now assistv in raisingr the but-kot to the necessary height. 'lhe bucket. is next; swung over the bin-car or chute which is to receive the coal, and the drum ot' the lille ll unclutched from the clutching-geur, which being' done, the jews will open und theeolltents ot' the bucket will instantly be discharged therefrom. Next, alftcrswinging the lluoket to the desired position, unclutch the drum 0l.' the line l from its clutchillc-gearU und tlul bucket. will descend into the hold ofthe vessel for uno1hei iond.

I um nwnre ol' tht hoisting-bucket shown :lud described in United States Patent, Na 362,528, dated -May lo, 1887, und therefore make no claim to anything shown therein. 'lhe devices for operating my bucket being above the pivotal shaft do not come into oon- Anothor lino, I, is connected to un IOO taot with or rnb against tho mato'iial with soribolh it boing'providod with tho oars-( l whioh tho bnokot is boing tillod, and oonsolin-nti) loss powor is ronnirod to Ltoporato or oloso tho iaws than is roqnisito in a. lnlol'al-rt havinga drinn providod with awhool ol' larger dianiotor arrangot'l onjtllo pivotal shal't,l\vhioll drum and whool whon loworod into oontaot with tho niatorial with whi'oh tho bln-kot is to bo tillod aro l'orood by tho woigllt of tho; buck-ot' into said nia-torial and revolvod in oonthe pivotzod ,ja-ws, the rods G,pivotod to the' lmoke'ps and to the huid-block, t-ho Said headblock provided with sheaves a'rratng'od thorowith, as shown, the' block l), supported on t'llo pivotal shaft ot the buolfrots and providod with sheaves which, during t-ho closing,r ot the jaws by the operative lino or chain, stand wholl)v above said shaft, for the purposo dosoribod, tho

single operativo linol or Chain ll,`soonrod to the headhlock, passing Iundor the shcavos of the block D. and over those of tho head-block and. upward through the said head-block, as shown,`and the hoisting-chain Loonnootod to the head-block, all substantially as shown and Set forth.

2. The head-blook I", substantially as do- 'lhe opora-tivo chains ot' said' a andj'f, projooting from its body, and having pivot-od within said body shoavos r, and pro' 'vidod with an o vo, as shown, i-n combination with tho pivo'tod jaws [-1 l5. sha ft. C ,blook l), rods pivoiod to tho jaws and 'to tho hoadblook, and tho linos ll and l, soonrod to the hoztd-blook, tho l'orntor boing' arrangod with tho blot-ks l) and lr, as shown. to onorato the jaws ot tho bnokot, all boing` t'or nso osson# .tially as sot lorth and ropt'osontod.

El. 'l`ho blook l),as oonnootod to tho pivotal shaft ol.' thobnolwts and providod with'rollors orslloavos arrang'od to stand wholly abovo said pivotal shal't whilo tho v (t ho said shoavos) are boing' rovolvod and drawn upward toward the ltoad-blook by tho oporativo litio .or'vohairt to oloso tho jaws ol' tho bln-kot, in oolnbination with tho jaws, tho pivotal shal't thorooi', the rods pivotocl tto/tho jaws and to theI headblook, "to :said Yaa'l-blork provided with shoavos and oyos.v as dosoribod, tito hoist-ing' lino or ohain oonnootod to said hond-block, and tho oporativo lino or ohain Il, tor closing' tho jaws, it boing attaohod atono ond to one of tho blooks and oarriod ovor and undor the shoa-vos ol' thol blooks', and tin'ally upward throng-h tho hoad-bloola. all snbstantialhas shown and sot, forth.

ln tostitnony whorool' lallix nllvsiguafnroin prosonoo ot' two witnossos.

(ao. W. RAWSUN. Wit nessos: I t

s. N. PIPER, C. l. DANIELs.

Corrections in Letters Patent No. 394,297.

1t is hereby certified that in Letters Patent No. 394,2977V granted Decemoe upon the application of George W. Rawson, of Cambridge, Massachusetts, provemcnt in Hoisting-Buckets, errors appear in the printed specification correction, as foi'lovifs: In line 30, page 1, a perico should be substituted for i after the Word shown, and the remainder of the paragraph stricken out;

' same page, the period after the word shaft should be stricken out i dnd also answer las weights tofaclitate the opening of the bucket; should be ins the said Letters Patent should be read with these corrections therein that the conforrn to the record of the case in the Patent Oce;

Signed, countersigned, and sealed this 8th dayof January, AFD.- 11889.

' D. L. HAWKL resin3.

Assistant Secretary of th 'Gountersignel BENTON J. HALL,

'Commissioner of Patente. 

